Prepayment of drug costs under a group practice prepayment plan.
D003191:Comprehensive Health Care; D003365:Costs and Cost Analysis; D004363:Drug Utilization; D005569:Formularies as Topic; D006123:Group Practice; D007348:Insurance, Health; D007356:Insurance, Pharmaceutical Services; D010595:Pharmacists / Q000706:statistics & numerical data; D010605:Pharmacy Administration; D014861:Washington